20 gore-free horror films

So good that director Michael Haneke made it twice - firstly, in 1997, in German, and then, 10 years later, in English - both versions of Funny Games are dominated by two white-clad young men who wreak bloody, seemingly motiveless violence on a holidaying family. The fact that we don't see the nastiness directly only makes the film more psychologically disturbing, and the "rewind scene" is one of the most distressing in all cinema.